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-   -   Exhaust flange (https://www.rx7club.com/rotary-car-performance-77/exhaust-flange-111030/)

EProdRx7 09-02-02 05:10 PM

Exhaust flange
 
Anyone know were I might be able to get one of these in Stainless?

Scalliwag 09-02-02 07:13 PM

If all else fails go to your local metal scrap yard and dig up a piece of plate at least 1/4", preferably 3/8". Get enough to do about 10 of them. Take the plate and your gasket to a steel fab shop. Since they usually have a minimum fee, find out how many you can get knocked off for the minimum fee. You could get real clever and catch a shop monkey at lunch and get them to do it on the side for you. After you get the flanges done, come back on to this thread and see if anyone here wants to buy one or more. If not then sell them on Ebay. Just a thought. I know finding things like this can be a real hastle and getting just one made can be pretty expensive.
Around here I can get scrap s.steel for pretty cheap in "drops"

FPrep2ndGenRX7 09-02-02 08:06 PM

www.burnsstainless.com

Scalliwag 09-02-02 08:42 PM

That is a great link but I looked at the prices for their Chevy flanges which I am thinking they have a lot of and they are $95. What are these guys going to want to charge for a special ticket order?
These guys are doing this stuff on CNC mills. Stainless is some hard stuff to work with but a plasma torch and a steady hand can knock off a nice flange pretty quick. Especially when they can throw his gasket down and trace a pattern from it. These CNC guys want to draw it out in CAD usually. There is nothing quite as frustrating as having a shop ask you for a CAD drawing when you have a flat part in your hand.

Felix Wankel 09-02-02 08:57 PM

Why can't you use the RB flange that goes with that gasket?

Scalliwag 09-02-02 09:02 PM

Is the RB stainless?

EProdRx7 09-02-02 09:26 PM

That's the problem. The RB one is mild steel. As it is the holiday weekend I couldn't call them to see if the do have it in stainless. I'll call tomorrow and find out. The header that I'm connecting to is all stainless so I'll call the guys that make it also. I'll let yopu guys know.

Scalliwag 09-02-02 09:45 PM

I can understand if you are wanting to use a stainless flange as a matter of principle. But you can weld stainless and mild steel together using a high alloy stainless filler rod. Since you cannot see the flange anyway that is what I would do.
If anyone tells you that stainless cannot be welded to mild you don't want them welding your header.
Get someone with a TIG setup. A good rule of thumb is that bikers work for beer and a lot of them are welders. A case of beer goes a long way with some of them! ;)

EProdRx7 09-03-02 07:39 AM

Yeah that is an option. But this is on my race car and it is removed often so the SS would work best. I have welded mild and SS before but the problem is that it rusts very qickly. I have a full TIG setup and MIG for that matter. I tried to make the flange myself but SS is such a bitch to machine.... BTW I work for beer too!

Scalliwag 09-03-02 09:41 AM

Haha!!! You must be a biker at heart too! You need a plasma torch for the bigger holes. Here is a secret I found out that may be helpful to you. There is a sandpaper called "blue zirconia". This is some really mean shit. When you are working with stainless this stuff is a helluva tool saver. It cuts through hardened steel with no trouble. I use it on flappers when I want to open up holes and 36 grit will tear up some shit pretty quick. The hardcore sandpaper supplies carry it. The finest you can get is 80 grit. If you can't find any let me know.

Scalliwag 09-03-02 09:45 AM

Oh, Norton Abrasives makes some consumable blades and grinder disks using zirconia as well. You may know about all this, but just in case you don't it will be VERY helpful and that's what this is about, right?
later

EProdRx7 09-03-02 11:05 PM

Cool shit I was unaware of it. Well good info but I found the flange ready made from ISC racing in FLA. Thanks though.

Scalliwag 09-03-02 11:14 PM

That is even cooler! Usually when I get to looking for something like that I never find it and have to fab it.
Just keep that blue zirconia at the back of your mind in case you need it someday. It's the shit!!!

Scalliwag 09-03-02 11:16 PM

Do the ISC people have a web site? If they have that flange they may have some stuff when I go looking next time. BTW how much did it set you back?

EProdRx7 09-04-02 12:28 PM

I don't think they have a website. They are not very big and are deeply involved in SCCA racing. ITS mostley but the owner Mike races an E Prod. car like mine. They do make some cool shit. give them a call 805-965-5115

duboisr 09-07-02 03:36 AM

How thick do you wont it to be ? if you answer I may know someone to make one.

Scalliwag 09-07-02 09:04 AM

He said he already found one.


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